zoj网站中多个练习的c++解答，文件名即为题目序号。经本人测试可以使用，主要为动态规划方面的问题，希望给初学者提供帮助。-zoj site multiple exercises c++ answer, the file name is the title number. After it tests may be used, mainly for the problem of dynamic planning, hope to help beginners.